The article states 'The nautical date line, which is not the same as the International Date Line, is a de jure construction determined by international agreement. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. It passes through the middle of the Pacific Ocean, roughly following the 180° line of longitude but deviating to pass around some territories and island groups. Dateline definition, a line of text giving the place of origin and usually the date of a news dispatch or the like. The International Date Line (IDL) on the map. Updates? It corresponds along most of its length to the 180th meridian of longitude but deviates eastward through the Bering Strait to avoid dividing Siberia and then deviates westward to include the Aleutian Islands with Alaska. International Date Line is defined as an imaginary line which is drawn from North Pole to South Pole. The international date line is defined as an imaginary line that goes north and south through the Pacific Ocean, one day is on the east side of the line and the following day is on the west side. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. International Date Line [ Änâ²tÉr-nÄsh â²É-nÉl ] An imaginary line on the Earth's surface that is internationally agreed upon as the place where each new calendar day begins. see more ». The international date line ⦠The date line runs from the North Pole to the South Pole through the Pacific Ocean. The date on the west side of the line is one day earlier than the date on the east side of the line. Updated : 2017-03-27 . dateline, date line, International Date Line (noun) an imaginary line on the surface of the earth following (approximately) the 180th meridian. / ɪn.t̬ÉËnæÊ. What does International Date Line mean? The International Date Line (IDL), is an imaginary line that runs roughly along the 180° line of longitude, in the middle of the Pacific Ocean. When you cross the IDL, the day and date change. The line extends from the North to the South Pole through the Pacific Ocean, roughly along the 180th meridian. The International Date Line is an imaginary line located halfway around the world at roughly 180 degrees longitude that separates one day from the next. Corrections? Time difference from International Date Line West. international date line, imaginary line on the earth's surface, generally following the 180° meridian of longitude, where, by international agreement, travelers change dates. Definition of international date line : an arbitrary line approximately along the 180th meridian designated as the place where each calendar day begins Examples of international date line in a Sentence Recent Examples on the Web Australia was among the first to ring in 2021 because of its proximity to the international date line. The International Date Line, also called the Date Line, is an imaginary line extending between the North Pole and the South Pole. An imaginary line through the Pacific Ocean roughly corresponding to 180° longitude, to the east of which, by international agreement, the calendar date is one day earlier than to the west. dateâ²lineâ² v. American Heritage® Dictionary of... Dateline - definition of dateline by The Free Dictionary. Meaning: n. an imaginary line on the surface of the earth following (approximately) the 180th meridian. ⦠The International Date Line (IDL) is an imaginary line on Earth's surface defining the boundary between one day and the next. The date on the west side of the line is one day earlier than the date on the east side of the line. The International Date Line is located at 180 degrees east or west of the Greenwich Meridian and is an imaginary line of longitude that differentiates between two different days. Los Angeles + 4 hours: Chicago + 6 hours: New York + 7 hours: Toronto + 7 hours: São Paulo + 9 hours: London + 1 2 hours: UTC + 1 2 hours: Lagos + 1 3 hours: Paris + 1 3 hours: Zurich + 1 3 ⦠Ring in the new year with a Britannica Membership, This article was most recently revised and updated by, https://www.britannica.com/topic/International-Date-Line, LiveScience - The International Date Line, Explained, National Geographic Society - Encyclopedic Entries - Date Line, International Date Line - Student Encyclopedia (Ages 11 and up). International Date Line, also called Date Line, imaginary line extending between the North Pole and the South Pole and arbitrarily demarcating each calendar day from the next. Please refer to the appropriate style manual or other sources if you have any questions. Thesaurus: synonyms and related words [1875â80] dateâ¢line (ËdeɪtËlaɪn) n., v. An imaginary line on the Earth's surface at 180° longitude, mostly through the Pacific Ocean, to the east of which the calendar date is one day earlier than to the west Date Line âAfter 119 years to the east of the International Date Line , they are shifting to the west so they can be on the same calendar day as their main ⦠The International Date Line exists for a specific reason. A traveler going completely around the world while carrying a clock that he advanced or set back by one hour whenever he entered a new time zone and a calendar that he advanced by one day whenever his clock indicated midnight would find on returning to his starting point that the date according to his own experience was different by one day from that kept by persons who had remained at the starting point. Make International Date Line West time default. The International Date Line is located halfway around the world from the prime meridian (0° longitude) or about 180° east (or west) of ⦠International convention accepts the line as the location where one day is divided from the next, with the area in the Eastern Hemisphere one day ahead of the Western ⦠You can ⦠The International Date Line, shown here as a yellow line, defines the boundary between calendar dates. The calendar day to the east of the line is one day earlier than it is to the west of the line. As Malcolm Thomson, a Canadian authority on the physics of time has noted, there are ⦠Omissions? On most maps, it is shown as an uneven black line because there are some locations where the border has been shifted. A phrase at the beginning of a newspaper or magazine article that gives the date and place of its origin. Areas to the west of the date line are one calendar day ahead of areas to the east. It corresponds along most of its length to the 180th meridian of longitude but deviates eastward through the Bering Strait to avoid dividing ⦠See more. Countries in the Eastern Hemisphere to the left of the line up to the Prime Meridian are always one day ahead of countries to the right of the line and west of the prime meridian. Time zones and International date line | UPSC â IAS. É n. É l Ëdeɪt laɪn / The International Date Line is an imaginary line between the most northern and southern points on earth that goes through the Pacific Ocean. The line extends from the North to the South Pole through the Pacific Ocean, roughly along the 180th meridian. International Date Line, also called Date Line, imaginary line extending between the North Pole and the South Pole and arbitrarily demarcating each calendar day from the next. Articles from Britannica Encyclopedias for elementary and high school students. The date line, also called the International Date Line, is a boundary from which each calendar day starts. The International Date Line is a consequence of the worldwide use of timekeeping systems arranged so that local noon corresponds approximately to the time at which the sun crosses the local meridian of longitude (see Standard Time). THE INTERNATIONAL date line (IDL) is the imaginary line on Earth slicing through the center of the PACIFIC OCEAN that separates two consecutive calendar days. It arbitrarily demarcates each calendar day from the next. Moreover, it is parallel to the longitude, but it is not considered as one of 360 longitudes. All Rights Reserved. Also, this line is not like a longitude, because longitude is a straight line and International Date Line is a zig zag line. The International Date Line was established at the International Meridian Conference in 1884 in order to standardize time, especially for the purpose of travel. The International Date Line (IDL) is an imaginary line of demarcation on the surface of Earth that runs from the North Pole to the South Pole and demarcates the boundary between one calendar day and the next. Crossing the international date line is like time travel where you cannot actually travel back and forth in time but certainly travel from today to tomorrow's date or go back from today to yesterday's date. While every effort has been made to follow citation style rules, there may be some discrepancies. /ɪn.t̬ÉËnæÊ.Én.Él Ëdeɪt laɪn/ The International Date Line is an imaginary line between the most northern and southern points on earth that goes through the Pacific Ocean. It is the result of the 1917 Anglo-French Conference on Time-keeping at Sea, which recommended that all ships, both military and civilian, adopt hourly ⦠Let us know if you have suggestions to improve this article (requires login). The International Date Line provides a standard means of making the needed readjustment: travelers moving eastward across the line set their calendars back one day, and those traveling westward set theirs a day ahead. It is not a straight line, however. Meaning: A line at the beginning of a news article giving the date ⦠Sense 2. The International Date Line serves as the " line of demarcation " between two consecutive calendar dates. international date line in American English [often I- D- L-] an imaginary line drawn north and south through the Pacific Ocean, largely along the 180th meridian: at this line, by international agreement, each calendar day begins at midnight, so that when it is Sunday just west of the line, it is Saturday just east of it An example of the international date line is when it's 3pm on Sunday in Samoa, it's 3pm on Monday right across the line, just 550 miles away in Tonga. An imaginary line on the Earth's surface that is internationally agreed upon as the place where each new calendar day begins. The International Date Line is an imaginary line on the surface of the Earth from the north to the south pole and demarcates one calendar day from the next. Dateline definition is - a line in a written document or a printed publication giving the date and place of composition or issue. Comprehending time around the world depends on an understanding of both the geographic grid of latitude and longitude, and of EarthâSun relations. Classified under: Nouns denoting spatial position. Our editors will review what you’ve submitted and determine whether to revise the article. Instance hypernyms: line of longitude; meridian (an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator). South of the Equator, another eastward deviation allows certain island groups to have the same day as New Zealand. International Date Line definition: get a summary, overview, and a better understanding of this term in the Dauntless Jaunter Travel Glossary. Add to favorite locations. Synonyms: date line; dateline; International Date Line. n. An imaginary line through the Pacific Ocean roughly corresponding to 180° longitude, to the east of which, by international agreement, the calendar date is one day earlier than to the west. Similar words: international, internationally, private international law, international relations, internationalize, internationalism, international trade, public international law. The international date line is defined as an imaginary line that goes north and south through the Pacific Ocean, one day is on the east side of the line and the following day is on the west side. Copyright © 2020 LoveToKnow. ... International Date Line. The International Date Line (IDL) is an imaginary â and arbitrary â line on Earth's surface that runs from the North Pole to the South Pole. This is to account for the many time zones around the world to make it easier for people to know what time it is in various countries ⦠The International Date Line , or IDL , is an arbitrary line going from north to south that marks where one calendar day ends and another begins. international centre for settlement of investment disputes, international electrotechnical commission, international federation of information processing. An imaginary line running north and south through the Pacific Ocean, largely along the 180th meridian: there is a 24-hour time difference between a point just west and one just east of the line, so that when it is Sunday just west of the line, it is Saturday just east of it. SMART Vocabulary: related words and phrases When it is one calendar day (for example, January 1st) in places to the east of the line, it is the next calendar day (January 2nd) in ⦠It is not a perfectly straight line and has been moved slightly over the years to accommodate needs (or requests) of varied countries in the Pacific ⦠Traveling eastward across the line, one subtracts one calendar day; traveling westward, one adds a day. It marks the time zone border where the date is actually changed by a whole day. It passes through the middle of the Pacific Ocean, roughly following the 180° longitude but it deviates to pass around some territories and island groups. MatsClock-gmt-1350 displays the time 12 hours less the Greenwich Mean Time or Coordinated Universal Time. international date line in American English [often I- D- L-] an imaginary line drawn north and south through the Pacific Ocean, largely along the 180th meridian: at this line, by international agreement, each calendar day begins at midnight, so that when it is Sunday just west of the line, it is Saturday just east of it The International Date Line sits on the 180º line of longitude in the middle of the Pacific Ocean, and is the imaginary line that separates two consecutive calendar days. International Date Line.
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